tilt sensor for trunk

So would it be a good idea to put a tilt switch on the underside of my trunk? It would protect my trunk from being opened plus protect my car from being jacked up. I do have a dual stage shock sensor BUT I had problems with it giving off false alarms. No matter how I adjusted it, it would either be way too sensitive or wouldnt be sensitive period. So what I did was cut the blue trigger wire. So now all the shock sensor does is give off  pre warn chirps. I had ordered an air pressure sensor which has 2 sensors each having 8 feet of cord. I will put one for my trunk and one in the car. I also have a glass break sensor which I will be installing plus I want to get a microwave sensor but just use the pre warn exterior part. I know this sounds like alot of sensors, having multiple sensors covering 1 part of the car. But you never know, 1 sensor might fail. I heard that shock sensors dont work if you use a special object to break the glass. The air pressure sensor might not work. Its better to be extra safe than not to have enough. I have just 1 question. Lets say I have 3 sensor triggers dioded to 1 trigger input. Lets say 2 of those sensors go off at the same time. The negative current from those 2 sensors wont fry my brain since they both go to the same trigger input  would they?